2008 week1 - BA 1306 Information Systems and Programming...

Info icon This preview shows pages 1–12. Sign up to view the full content.

View Full Document Right Arrow Icon
BA 1306 Spring 2007 BA 1306 Information Systems and Programming Asst. Prof. Engin Kucukkaya
Image of page 1

Info icon This preview has intentionally blurred sections. Sign up to view the full version.

View Full Document Right Arrow Icon
BA 1306 Spring 2007 Introduction Lecture Outline: The Big Picture Hardware Data Communications The Internet Classification of Computers Software
Image of page 2
BA 1306 Spring 2007 The Big Picture The computer systems have three main components: Hardware , software and people. The equipment associated with a computer system is called hardware. The programs, or step-by-step instructions that run the machines, are called software. Computer programmers write programs for users, or end-users people who purchase and use computer software.
Image of page 3

Info icon This preview has intentionally blurred sections. Sign up to view the full version.

View Full Document Right Arrow Icon
BA 1306 Spring 2007 Hardware A computer is a machine that can be programmed to process data (input) into useful information (output). A computer system requires four main aspects of data handling: Input Processing Output Storage .
Image of page 4
BA 1306 Spring 2007 Hardware: The basic components Input is data to be accepted into the computer Common input devices are keyboard, mouse, joystick, and scanner. Storage devices and communication devices can also be used for input.
Image of page 5

Info icon This preview has intentionally blurred sections. Sign up to view the full version.

View Full Document Right Arrow Icon
BA 1306 Spring 2007 Input A keyboard is a common input device that may be part of a personal computer or a terminal connected to a remote computer. A mouse is an input device with a ball on its underside, whose movement on a flat surface causes a corresponding movement on the screen. Moving the mouse allows you to reposition the pointer, or cursor, an indicator on the screen that shows where the next interaction with the computer can take place. Mouse technology is now shifting towards optical mouse, where light beams emitted by the mouse are used to capture the movement.
Image of page 6
BA 1306 Spring 2007 Input A trackball is like an upside-down mouse—the ball is rolled with the hand. A touch pad invokes a command with finger movement.
Image of page 7

Info icon This preview has intentionally blurred sections. Sign up to view the full version.

View Full Document Right Arrow Icon
BA 1306 Spring 2007 Input A scanner converts text, drawings and pictures into computer-recognizable form Types of scanners Flatbed Sheetfeed Handheld Overhead Drum Handheld Overhead Sheetfeed
Image of page 8
BA 1306 Spring 2007 Input Voice input, or speech recognition, is the process of presenting input data to the computer through the spoken word. Speech recognition devices convert spoken words into a digital code that a computer can understand. The two main types of devices are
Image of page 9

Info icon This preview has intentionally blurred sections. Sign up to view the full version.

View Full Document Right Arrow Icon
BA 1306 Spring 2007 Input Input can be given directly to a computer via a touch screen; a finger touching the screen interrupts the light beams on the monitor edge, pinpointing the selected screen location. A user can deliver input to a computer by looking at a screen, assuming electrodes are attached to the skin near the user's eyes so that their signals can be read by the computer system.
Image of page 10
BA 1306 Spring 2007 The processor, or central processing unit ( CPU ), processes raw data into meaningful, useful information.
Image of page 11

Info icon This preview has intentionally blurred sections. Sign up to view the full version.

View Full Document Right Arrow Icon
Image of page 12
This is the end of the preview. Sign up to access the rest of the document.

{[ snackBarMessage ]}

What students are saying

  • Left Quote Icon

    As a current student on this bumpy collegiate pathway, I stumbled upon Course Hero, where I can find study resources for nearly all my courses, get online help from tutors 24/7, and even share my old projects, papers, and lecture notes with other students.

    Student Picture

    Kiran Temple University Fox School of Business ‘17, Course Hero Intern

  • Left Quote Icon

    I cannot even describe how much Course Hero helped me this summer. It’s truly become something I can always rely on and help me. In the end, I was not only able to survive summer classes, but I was able to thrive thanks to Course Hero.

    Student Picture

    Dana University of Pennsylvania ‘17, Course Hero Intern

  • Left Quote Icon

    The ability to access any university’s resources through Course Hero proved invaluable in my case. I was behind on Tulane coursework and actually used UCLA’s materials to help me move forward and get everything together on time.

    Student Picture

    Jill Tulane University ‘16, Course Hero Intern